Catalytic Converter for Acura CL (2001-2003) 3.2L Front

Direct-Fit Front Catalytic Converter for 2001-2003 Acura CL (YA4)

What it Does: The Front Catalytic Converter replaces degraded emissions equipment on the 2001-2003 Acura CL to eliminate P0420 diagnostic trouble codes and restore factory exhaust velocity.

The Stock Acura CL Catalyst Deterioration

Over extended heat cycles, the factory ceramic monolith inside the forward exhaust bank of the J32A1 V6 experiences thermal degradation, washcoat sintering, and carbon fouling. As noble metal active sites deteriorate, internal backpressure rises, choking high-RPM scavenge cycles and setting persistent emissions fault codes. Worn factory casing welds and corroded mild-steel two-bolt flanges also frequently crack under thermal expansion, creating exhaust gas leaks ahead of downstream secondary oxygen sensors that disrupt closed-loop fuel trim calculations.

The Engineering Solution

This direct replacement front catalytic converter assembly is engineered with a high-grade stainless steel outer shell and mandrel-bent tubing to withstand continuous cyclic thermal stress. Internally, a resilient honeycomb ceramic substrate is washcoated with an optimized balance of precious metals to restore efficient catalytic conversion of unburned hydrocarbons and carbon monoxide without constricting exhaust pulses. Thick, laser-cut mounting flanges match factory mating points for leak-free sealing, using stock hanger locations to guarantee drop-in fitment without cutting, bending, or custom welding.

Technical Specifications

Compatibility

• 2001 Acura CL Base 3.2L V6 (J32A1, Front Position; Non-Type-S)
• 2002 Acura CL Base 3.2L V6 (J32A1, Front Position; Non-Type-S)
• 2003 Acura CL Base 3.2L V6 (J32A1, Front Position; Non-Type-S)

Frequently Asked Questions

Does this fit the YA4 CL?

Yes, this is a direct fit for the 2001-2003 Acura CL equipped with the J32A1 engine (Base trim, Front position).

Is this catalytic converter legal for road use in California or New York?

No, this unit is EPA compliant for 48-state applications and cannot be legally installed or registered in California, New York, Colorado, or Maine.

The Acura Engineering Caliber

Engineered specifically for Honda/Acura J-series V6 platforms, this catalytic unit restores the smooth power delivery, clean tailpipe emissions, and refined exhaust acoustics expected of Japanese luxury performance coupes.